Package org.eclipse.aether.internal.impl.collect

Class DefaultDependencyCycle

java.lang.Object

org.eclipse.aether.internal.impl.collect.DefaultDependencyCycle

All Implemented Interfaces:

DependencyCycle

public final class DefaultDependencyCycle
extends Object
implements DependencyCycle

Default implementation of DependencyCycle. Internal helper class for collector implementations.

Constructor Summary

Constructors

Constructor	Description
DefaultDependencyCycle(List<DependencyNode> nodes, int cycleEntry, Dependency dependency)

Method Summary

Modifier and Type	Method	Description
static int	find(List<DependencyNode> nodes, Artifact artifact)	Searches for a node associated with the given artifact.
List<Dependency>	getCyclicDependencies()	Gets the dependencies that actually form the cycle.
List<Dependency>	getPrecedingDependencies()	Gets the dependencies that lead to the first dependency on the cycle, starting from the root of the dependency graph.
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

DefaultDependencyCycle

public DefaultDependencyCycle(List<DependencyNode> nodes,
 int cycleEntry,
 Dependency dependency)

Method Details

getPrecedingDependencies

public List<Dependency> getPrecedingDependencies()

Description copied from interface: DependencyCycle

Gets the dependencies that lead to the first dependency on the cycle, starting from the root of the dependency graph.

Specified by:

getPrecedingDependencies in interface DependencyCycle

Returns:

The (read-only) sequence of dependencies that precedes the cycle in the graph, potentially empty but never null.

getCyclicDependencies

public List<Dependency> getCyclicDependencies()

Description copied from interface: DependencyCycle

Gets the dependencies that actually form the cycle. For example, a -> b -> c -> a, i.e. the last dependency in this sequence duplicates the first element and closes the cycle. Hence the length of the cycle is the size of the returned sequence minus 1.

Specified by:

getCyclicDependencies in interface DependencyCycle

Returns:

The (read-only) sequence of dependencies that forms the cycle, never null.

find

public static int find(List<DependencyNode> nodes,
 Artifact artifact)

Searches for a node associated with the given artifact. A version of the artifact is not considered during the search.

Parameters:

nodes - a list representing single path in the dependency graph. First element is the root.

artifact - to find among the parent nodes.

Returns:

the index of the node furthest from the root and associated with the given artifact, or -1 if there is no such node.

toString

public String toString()

Overrides:

toString in class Object